Rates and Regulatory 
 
 

 

 

In Illinois, Ameren Illinois is responsible for the delivery of electricity and natural gas to our customers. Ameren Illinois is regulated by the Illinois Commerce Commission and is also subject to federal regulatory oversight.
  
In Missouri, the Ameren Missouri electric (generation and delivery) and natural gas delivery operations are regulated by the Missouri Public Service Commission. Ameren Missouri is also subject to federal regulatory oversight.

For the text of current regulatory proceedings before these and other regulatory bodies, see Utility Commission Filings.

Ameren Federal Energy Regulatory Commission (FERC) Compliance Postings
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